Improvement in apparatus for evaporating saccharine liquids



remorse. BUTLER, or BELLCWs FALLS', vEnMCNrAssleNoR To HIM- sntr AND'JA'MES B. WILLIAMS, or eLAsToNeURY, CONNECTICUT.

'Leners Patent No. fnzeadaad Mara 14, 1871.

The Schedule referred to in these Letters Patent and making parl: of the same.

To all whom. 'itmay concern Be it known that I, l:Emeritus G. B'UTLER, of Bel- 4lows Falls, county Windham and State of Vermont,

have invented' cert-aiu newand usefull Improvement' in Evaporating Apparatus; and to enable others skilled in' the art tomake and use the same, I will r proceed to descr'ibe,-1'efe1ring to thedrawing, in which the same letters indicate like parts in each of the figures.

The nature of ,this invention consists inarranging two or more evaporating-pans'over the fire-arch y or furnace, made either (the dre-arch or furnace) ista- 'tionary or portable, `one oi' which is or may be hinged Aat the rear end of and covers a divided portion of said arch, so that'the sirup may be drawn iro'ln the rst pan into Athe secoxnl pan for nishg' ing, and, when nished, it may be drawn oii' orf discharged from the pau, by elevating -one end or side thereof in a direction toward the chimney, and al'- low the sirup or finished sugar to iow therefrom through: the ontletnozzle, extending 'back by the side ofthe chimney. It consists further inthe arrangement of a series of dampers directly under a finishingcompartment ot' an evaporating-pan, or d irectly 'under a distinct l hinged finishing-pan, so that, when the dampers `are opened at'auangle of about forty-tive degrees, the direct dranghtxvll be checked, Yand the force of the heat will be thrown directly against the bottom of the pan, and when thev Sirup or sugar is iinished and .it becomes necessary to discharge the sirup or sugar from the pan, by simply closing the dampers the. heat will be entirely'closed ofi' from the underside of `thepan, and the evaporation of the first `part of-the pan will be going on without interruption while the Viinishing-pan is being discharged.

AThere is often mluch diiiiculty experienced with arches or fm'naces, upon which evaporators are set and used, in obtaining sufficient heat at the-end near,-V

- est the chimney, where the sirup or sugar is usually finished.` `To enable the operator to iinish quickly and remove the product ot' evaporation without its beingdamaged by long exposure to heat, which al- 1 ways tends to` ,darken the color of sirup or sugar,

it is also highly important that the `heat should be shut away iromthe iinishingpan or compartment at the moment the operator ascertains that the Sirup or sugar is finished, without stopping or retarding th'e evaporation in the palts of the evaporator more ilnuxediatelyover theire; also, to prevent the rem- Vnant rig/uiaiming upon the pan from burning on before another charge or batch can be drawn in for treatment; also, to better Venable the operator to cleanse the finishing-pan or compartment.v In the accompanying drawi ng Figure l is a side sectional elevation.

Figure 2 is aside sectional velevation of a. modi-v 'structed of metal or masonry in the' common Way,

and may be made portable or stationary.

b is the tire-chamber.

i c are evaporating-paus, arranged upon the walls of an arch or furnace. i

c' is a unis-hing compartment of the pan c.

c is a movable or hinged pan, arranged upon a frame-Work or projecting portionrol' the Wall or masonry of the arch or furnace a, so that the sirnp will readily How from the pan c into the pan c'.

-In iig. 1, the partition d is formed across. the firechamber b, just in front of the back end of the evaporating-pan c.

rIhe partitions d d" are dropped down belowthe top of the wall d, and the fulcrums x, of the series oi' dam pers e, are arranged nearly in a line with the bottom edges oi' the partitions d' d, and 'are connected, so as to act in uniformity with each other, by a connecting.- rod, fi, so that when the dampers are openat an angle of i'oIty-ve degrees the direct 'draught It will be closed or checked, and the heat extended directly upon the under side of the nishing-pan, and when the finishing of the sirup or sugar is completed, by turning the lever or crank f the dampers c will be brought into a nearly horizontal position and the heat entirely closed off from the bottom of the pans c'c", when the sirup or sugar-may be drawn .ol'from the compartment c', or poured yoff from the pan c", through the nozzle g, by elevating the side or end oi' the'pan, which is or maybe hinged at h. What I claim, and desire to secure by Letterslatent-,isl-

l. A series o f dampers, e, arranged under an evaporating-pan or` compartment, c', or a finishing-pan, c, substantially as and for the purpose set forth.

. 2. In combination with the dampers c, constructed and arranged as described, the iixed or hinged pans .c' c", substantially as and for the purpose set forth.

. F.' G. BUTLER. Witnesses:

EDM. F. BROWN, J einem W. BLIss. 

